The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2001
Filed:
Aug. 03, 1998
Harald Pfeffinger, Tiefenbronn, DE;
Micheal Voit, Remseck, DE;
Tilman Haug, Uhldingen-Muehlhof, DE;
Patrick Izquierdo, Ulm, DE;
Herbert Gasthuber, Ulm, DE;
Oliver Storz, Blaustein, DE;
Axel Heuberger, Wildberg, DE;
Franz Rueckert, Ostfildern, DE;
Peter Stocker, Sulzbach, DE;
Helmut Proefrock, Leutenbach, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
A tribological coating made of a copper-free highly hypereutectic aluminum/silicon alloy and/or of a copper-free aluminum/silicon composite material composed such that fine silicon primary crystals and/or silicon particles, intermetallic phases, and oxides form as hard particles during the production of the layers in the atmospheric thermal spraying method and/or are anchored in the structure. The surface of the coating can be machined economically by short-chipping using conventional tools, so that additional alloy elements such as copper for forming additional intermetallic phases such as Al,Cu can be eliminated. This is significant because conventional AlSi cylinder liners in reciprocating engines pose problems in conjunction with certain fuels because of their copper content.